Straight-side bead flapping machine



Jan. 5 192.6. `1,568,823

F'. D. FOWLER STRAIGHT SIDE BEAD 'FLAPPING MACHINE Filed Jan.- 19, 1924 5 Shea-ts-Shee'b 1 Invna'm L @ed D. Ffwler, ,bly/5M M www@ A Jan.l5 1926.

F. D. FowLER STRAIGHT SIDE BEAD FLAPPING MACHINE Filed Jan. 19'J 19244 5 Sheets-Sheet 2 Invnbr;

Red lljwler, W mw/n af/M Jan. 5 1926.

F'. D. FOWLER STRAIGHT SIDE BEAD FLAPPING MACHINE Filed Jan. 19, 1924 5 sheetssheet 5 A Jan. 5 1'26. 9

F. D. Fow| ER STRAIIGHT SIDE BEAD FLPPING MACHINE Filed Jan- 19' 1924 5 Sheets-Sheet 4 Jan. 5 1926.

. 1,568,823 F. D. FowLl-:R f

STRAIGHT-SIDE BEAD FLAPPING MACHINE Filed Jan. V19, 1924 5 sheets-sheet 5 46 I a 40 44 1 l l Il 4Z 45 l lllrzll l' I l I 3P 56 O s i l: 0 36 Ll( 3.9 l 7 Q 4.0 N [El] jg ll I Y?, Qms@ I1 k 35 I l 92A ASS Ii Il I '14@ 49 l f i Inueno:

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Patented Jan. V5, 1926.

' UNITED STATES 1,56asz3I PATENT oFFlcE.

FRED D. FOWLER, OF WATERTOWN, MASSACHUSETTS, ASSIGNOR TO HOOD RUBBER COMPANY, OF WATERTOWN, MASSACHUSETTS, A CORPORATION OF MASSACHU- sErTs.

-STItA'.[GrH'JJ-SIIDIET BEAD FLAPPING MACHINE.

Application led January 19, 1924. Serial No. 687,396. i

To all whom it may concern:

Be it known that I, FRED D. FowLER,.a citizen of the United States, and resident of Watertown, in the county of Middlesex and State of Massachusetts, have invented cer' tain new4 and useful Improvements in Straight-Side Bead Flapping Machines, of which the following is a specification. n

' My present invention relates to improvements in machines for applying rubberized covering strips to bead core rings, such as are incorporated in the edges of open bellied or double tube pneumatic tires, and is herein shown as embodied in apparatus intended for applyingl such strips to cores intended for straight side or inextensible edge tires, such cores embodying metal strengthening means, such as braided wire, and beingin stiff or relatively inexible hoop or ring form.

The invention aims to provide a relatively simple, economical and durable form of apparatus which will expeditiously apply the strips in a proper manner, while maintaining the ring in a horizontal plane in convenient position and'with the Hap uppermost and exposed throughout to observation of the operator.

Withthese and other objects in View, the invention includes the novel features of construction and arrangement and combination of parts hereinafter described, and particularly defined by the appended claims.

An embodiment of my invention is illustrated in the, accompanying drawings, in

Figure l is a side elevation of a machine constructed in accordance with my invention.

Fig. 2 is a plan View.

Fig. 3 is a detail View roll. i

Fig. 4 isa detail view of the fabric supporting drum and ,cooperating applicator or 4presser roll.

Fig. 5 is a detail view of the second guide and fabric forming roll.

Figs. 6, y,'fa'nd 8 are detailed views showing thesucceoding pairs of rolls and the manner in which they cooperate.

Figs. 9 and l0 are detail views of the driving mechanism'.

Referring by reference characters to these drawings, the numeral l designates a table or platen which is mounted upon suitable of the first guide standards 2, preferably of pipe formation, connected adjacent their lower ends by hori zontal brace members 3 by means of T couplingsy 4.

The table is located at a height convenient to the operator and is provided with guiding means for the fabric covering strip, which means preferably takes the form of a pair of parallel guides 5 adjustably held to the table by means of thumb screws 5X passing through elongated openings or slots in the laterally projecting portions 5'LL of the guide bars 5, whereby the guides may be adjusted towards or from each other for properly positioning the fabric and to accommodate varying widths according to the size bead being wrapped. The fabric strip may be conducted from any suitable source of supply (not shown) and after traveling along the table between the guides, passes underneath and upward around an idle guide roller 6, and thence upward around supporting drum 7, both thev guide, roller and drum being journaled in the brackets or standards. 8 bolted to the table.

The drum is provided with periphera flanges Za forming guides for the edges of the strips and to accommodate different size strips these flanges are made adjustable towards and from each other. To this end the drum is threaded for a suitable distance from opposite ends and the flanges are in the formof split internally threaded rings, the ends of which are held together by set screws, which may be loosened to allow the flanges to be screwed in or out, and tightened to clamp them firmly in position. The central unthreaded portion of the drum is designed to support the fabric at the point where it contacts with the bead core.

These bead cores 9 are approximately triangular in cross secton and I have found the best results are secured bead core and fabric 10 in such a manner f` that the edge 9a is pressed against the strip at approximately the center line thereof and thereafter the margins of the strip manipulated in the manner hereinafter described.

Adjacent the drum Z but in advance thereof, is journaled'a bead core guide and by juxtaposing the pair of flanges 11 and 11b, the flange 11b eing adjustable to adapt the roll to cores of various sizes, preferably by making the flange in the shape of a ring having internal threads engaging corresponding threads on the roll 11. The roll is journaled on a rod or arm 12 which is adjustably carried by the split upper end of a bracket member 13 which in turn is mounted for vertical adj ustment on a post 13n conveniently by forming the lower end of the bracket of split tubular form to slidably engage this post, and providing it wit-h an encircling (taper) clamping nut for compressing or contracting t-he split end on the post. By this means the guide roll is capable of both vertical and horizontal adjustment relative to the fabric supporting drum.

Upon the opposite side of the drum is a second core guide and fabric forming roll 14 rotatably mounted upon an arm 15 secured for horizontal adjustment to the split upper end of a' bracket 16 carried by a post 16 similar tc post 13a.

The bead core having been guided by the roll 7 so that its edge 9a is positioned centrally of and upon the fabric, it is pressed thereagainst and caused to adhere thereto,

by a presser or applicator roll 17 (Fig. 4)

journaled on an arm 18 which is adjustably carried by a split bracket 19 capable of being clamped to the arm by clamping screw 19. Bracket 19 is pivoted in the forked or bifurcated upper end of a second bracket member 20 adjustably'mounted on a post 21,

` the bracket being split and provided with a clamping screw 20u by which it may be firmly secured at any desired elevation. The roll 17 when in applying position, as shown in Fig. 4, is ressed yieldingly against the upper face ofP the core by a spring 22 having one end fast to bracket 19 and the other end to a p'art of bracket 20. v

The rear extremity of arm 18 is provided with a handle 18 by which the roll 17 may be swung away from the drum to permit removal of' the covered core and its replacement by a fresh one. The relative arrangement of pivot and spring connection is such that when -the arm 18 is swung back to the limit of its movement, the spring lies in rear of the bracket pivot, or 1n other words, crosses the dead center, and holds the applicator roll 17 away from the bead core. After the bead has been pressed against and caused to adhere to the fabric, these both pass to the roll 14 which has side flanges corresponding approximately to the two sides of the bead and which deflect the margins of the fabric strip upwardly, as shown in Fig. 5.

After leaving roll 14 the assembled core and strip pass between a air of coacting rolls 23 and 24, by the action of which the fabric is pressed into intimate contact with,

and firmly united to, two sides of the core, as shown in Fig. 6. Roll 23 is mounted on a shaft'25 journaled in bearing bracket 26 carried by the table, and said roll is made in two parts, the one to which the reference character 23 is applied being fast on the shaft, and the other designated 23 being removable conveniently by screw threading it onto a projecting end of the shaft. Roll portion 23 has a vertical face corresponding to the vertical face of the core, while roll portion 23a has a face curved to fit the corresponding core face, this being of somewhat a reverse curve. By removing member 23" and substituting one of a different size or shape, the variations in cores may be accommodated.

'lhe roll 24 is mounted upon a swinging bracket and spring pressed in a manner exactly similar to roll 17, and as this will be obvious from the drawing, repetition of the description is deemed unnecessary. Roll 24 has` a peripheral rounded flange 24 designed to press upon the slightly concave upper surface of the core, and a Apartly spherical head 24b which acts to hold the corresponding marginal flap of the fabric strip deflected outward away from the other flap, this bein rendered necessary by the fact that said ap projects from the vertical face of the core.

The next operation is to deflect or fold the marginal flap 10 across the upper face of the bead and over the other flap 10b and this is accomplished by a stitching roller 27 journaled upon a spring pressed swing arm 27a similar to those already described, roller 27 being journaled, however, upon an axis slightly inclined from the vertical and having a flat under face and peri heral flange which enlarges said face wit out unduly enlarging the roll body.

The final action is performed by a pair of coacting rolls 28 and 29, 28 being a two part roll similar to roll 23, but its removable part 28 being provided with a portion 28b oftruncated cone shape designed to support the flap 10b in inclined position against the pressure of coacting roll 29 which is of cylindrical formation. This roll is mounted on a swinging spring pressed arm similar to those already described and overlies not only the roll portion 28b but the adjacent portion of the bead core, whereby not only are the two flaps pressed into intimate contact, but the fla 10 is pressed firmly against the thin edge of the bead.

The various rolls hereinbefore described are arranged on the arc of a circle in a horizontal plane, whereby the flapped edge of the bead ring Vis kept uppermost and outwards towards the operator, and he is enabled to watch the progress of the work at all times.

The portion of the bead ring not being acted on by the rolls he'reinbefore described is supported by id le rolls journaled at the rear of the table on axes which radiate from the same center astlie arc of the circle on which thel applicator and presser rolls-'are arranged.

My preferred manner ofy applying,

to move the bead core' and' fabric strip vthrough the machine is to have the shafts of rolls 23 and 28 providedwith bevel 'gears 30 and 3l, respectively, which mesh with corresponding ears 32 and 33.

The shafts o these gears 32 and 33' carry spur gears 34 and 35 which in turn mesh with spur gear 36 on shaft 37. A worm` wheel '38 is connected with gear 36-so as to drive the same andworm 38 is in turn driven by Worm 39 fast on shaft 40. Shaft 40 cartreadle lever elevated.v

ries allanged belt pulley 41 connected by a loose belt with a pulley 42 fast on the shaft of an electric motor' 43. 4 Normally the beltis in a loose or slipping condition and to render it 'effective to drive the rolls through; the connections described an idle pulley 44 is provided carried by a pair of swingingarms .45 fast on'shaft 46 which is'l adapted to be `rocked Ito swing the idlepul# ley 44 against vthe belt to tighten the same by a treadle lever 47 whichis connected by adjustable link 48'with an arm 49 on shaft 46. A spring 50 tendsA normally to hold the idle rollers 28 and 29.

The guide roll l1 is position to hold the core in its natural circular path and if necessary, adjustedas to width of groove to correspond to the bead to,be covered.

If necessary also the flanges of drum 7 are adjusted or set to allow proper spacing of fabricon each side ofthe core and to correspond to width of fabric used, and fabric guides are set to properly deliver or aline the fabric strip. Idler roll 14 is set to start the bending up of the fabric from the toe or angle of the core so that it may enter the groove of roller 23 in a partially folded up condition. The machine havingl been set in operation by the depression of the treadle lever roller 17, presses thefcore onto the fabric throughl the action of its presserspring, and, by reason of the'sticky .power y auxiliary vmember having engaging sald extensionjand having an an nular reduced face forming wlth said peror taclry nature of the' material,- ltacks l'the toe ofthe bead, to the fabric( As the bead and fabric move forward, roll h 24"00-A acting with roll -23 causes the fabric, the

tially deflected upward (Fig. 5) tonbe pressed against two sides of the bead (Fig.l

6).. .Thereafterl stitcher roll 27 dellects the' the bead,

Well as to the projecting fabric margin l0b -by the coaction ofrolls 28 and 29.

Having t'hus described my invention, what I claim is: Y l.4 In 'a -machine of theclass described, the combination with means for j uxtaposing i wings or margins ofv which have been'par- (Fig. 7) across the upper face of to which it is lfirmly united, as

'nsl

a traveling fabric strip and bead core, of a pair of c oacting fabric pressing rolls, one of said rolls having a` groove to vreceive said core and strip, said roll havingl a removable and interchangeable part forming one of the walls ofthe groove. Y

roll comprising a main member having a face perpendicular to theaxis ofthe roll andfan axial extension andan auxiliary member removably and interchangeably secured von said extension and having a reduced face forming, withv said perpendicu-- lar wall, a bead receiving, groove;

In a machine of the class described, a'

' 2. In a machine 0f the class described, a

and a threaded axial extension, and an a pring pressed cylindrical roller or bearing against said upper side,and vmeans for the margins of the subsequently folding fabric about the core.

5. In a machine of drum for sup fabric, means the class described, a

or juxtaposing thereto a triangular bead core with an apical edge towards the fabric and the opposite side upler1n'o'st,`a spring pressed cylindrical roller or bearing against .said -upper side, and

-means for subsequently folding the margins' of the fabric about the `core.

In testimony whereof, I 'ailix my signature.y

a threaded bore I side up ermost,

FRED D. FoWLER.

roll comprising `a main member having a j lface perpendicular to the axis of the roll orting a vtraveling strip of 

